Richard Rowell writes:
> I'm no backend guru, so I was hoping someone could explain what the original
> query-plan was doing. If all you need to know is if a row exists, why loop
> over all 3M rows? It seems very simplistic to assume the a LIMIT 1 clause
> on the end of all EXISTS subqueries wou
I was just troubleshooting a slow query
SELECT * FROM da_answer a
WHERE
a.provider_id IN ( SELECT visibility_bypass_providers( 0, 0 ) ) OR --
ownership
(
EXISTS ( -- Visibility grant
SELECT v.client_answer_id FROM sp_client_answervisibility v
JOIN sp_sharing_grou
